Friction-clutch pulley



C. R. PIEPER.

FRICTION CLUTCH PULLEY.

APPLICATION FILED NOV. 8,1917- Patented Mar. 9, 1920.

P ri Y. n m U w y w ments in Friction-Clutch Pulleys,-'of which f; UNITED STATES arana-Tors on,

cnns'rnn n.

r nrma'or LA onossn, WISCONSIN, ASSIGNOR TOVVGU'ND MANUFACTURING COMPANY, or LA cnossn, wlsoons mn oonronarron or WIsooNsIN.

rnIcTIoivwnU'rcH PULLEY.

To'all'whom it may concern:

Be it known that I, CHESTERVR. PIErER,

acitizen of the'United States, and aresi-, (dent of La Crosse, in the'county of La Cro sse and State of'Wisconsin, have "in- Vented certain new and useful Improvethefollowing is a specification.

ina friction clutch. pulley means for start ingthe pulley rim slowly so that it Wlll obtain its full driving speed "without anysudj is den jerks. v I

Another object of my invention 1s to provide in a friction clutch pulley improved driving member.

'Anotherobject ofmy invention to'proa divide in a friction clutchpulley an improved i nhereinafter described'with reference to'the style of rim and a frietionshoe co-acting diameter of the circle described by the outer portions of the spokes.

With these and incidental objects inview the invention consists-of certain novel features of construction and combination of parts, the essential elements of which are drawing which accompanies and forms ,a

part of this specification.

"having on itsinner side a r l of the spokes 7.

In the drawing Figure 1' is a side eleva. "tion of a pulley embodying my, invention with a portion of the hand wheel broken away; Fig. 2 is a section taken on the line 2-2, Fig.

I preferto use a crown face pulley rim 1, tongue 2 forming a T-sectionj'for the rim.

A hub 3, Fig. 2, has lugs 4 to' which are hingedby pins 5, Fig.1, the forked end 6 I Thefforked end of thespokes have extending therefromlugs 8, Fig. 2, adapted to engage with a cone-shaped portion 9 of the ,5 0 the hand wheel 10 inwardly, which may be 7' hand wheel 10, which engages,by screw connection. at 11, with the hub 3. V It isevident therefore that by; screwing done by merely grasping'it while the hub 3 is being rotated, the lugs 8Qare forced outwardly and with'themthe spokes 7;

vThe hub 3 would be fastened to and driven by an engine ormotor shaft used to Specification of Letters Patent.

shoes and the rim;

clutch means between the pulley'rim and the atented ManQ, 1920. Application-filed Noyember 8,1917. Seria1No.2(l0,993. V

furnish pater for the device with which the thetongue2 on the'inner side of the rim, as r plainly shown-in Fig.2 p f It is apparent therefore that-when the I 7 hand wheel is turned inwardly the [shoes 12 One'object of my invention is to provide will engagewith. the inner surface ofthe the, rim 1 through the friction -between the v K Theton'gue 2 locates the ma theloose spokes when the pulley is not being rotated and serves as a strong yet simple construc- I tion" for uniting the rim with; the loose spokes. V

While I have described. my invention an illustrated it-in one particular design, I do not wish it. understood that 1 limit myself tothis construction, as itis-evidentthat the application of my invention, may be varied in many ways withinthe scope of the fol- V lowing claims.

I claim: 1. In a frictionclutch pulley the combination of a hub, aninternal hand wheel and conical clutch engaging surface carriedby said hub by screw engagement, a plurality of spokes hingedto said hub, each of said spokes having a lugengaging with the cones aped portion of-said hand wheel, a shoe carried by each of said spokes at their outer ends, and'a rim having a T-shaped'section ridir'ig on said shoes so that said shoes may be brought into frictional engagement with sald IlIIl by the relativemovement of said hand wheel and said hub.

2. In a friction'clutch pulley the combination of-a. free running rim, a hub having portion thereof,- lugs internal threads in one pro ecting from the outer. surface of said hub, a plurality of spokes hinged to said 2 V lugs and carrying-shoes at their outer ends engageable with said rim, a hand wheel hat? ing a cone shaped portion engageable with the inner ends of each'of said spokes and engagingwith thethreaded portion of said hub by screw connection whereby said shoes may be brought'into engagement with the inner surface of said rim, and whereby the engagement of the cone shaped surface with the inner ends of said spokes may be pos'i tiyely released. T

CHESTER RaPIEPER.

rim 1' and the tongue2, and thereby rotate r 

